Service Manual Model 436101/436102/436103/436104/436106 µR10000 SM 04P01B01-01E Yokogawa Electric Corporation 1st Edition
Important Notice to the User • This manual contains information for servicing YOKOGAWA’s µR10000. Check the serial number to confirm that this is the correct service manual for the instrument to be serviced. Do not use the wrong manual. • Before any maintenance and servicing, read all safety precautions carefully. • Only properly trained personnel may carry out the maintenance and servicing described in this service manual.
Introduction This manual contains information for servicing YOKOGAWA’s µR10000. Note This is the first edition of the manual, dated March 2005. WARNING This service manual is to be used by properly trained personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so. Refer to the safety precautions prior to performing any servicing.
WARNING • Power Supply Ensure that the source voltage matches the voltage of the power supply before turning ON the power. • Protective Grounding Make sure to connect the protective grounding to prevent electric shock before turning ON the power. • Necessity of Protective Grounding Never cut off the internal or external protective earth wire or disconnect the wiring of the protective earth terminal. Doing so invalidates the protective functions of the instrument and poses a potential shock hazard.
Overview of This Manual This manual is meant to be used by qualified personnel only. Make sure to read the safety precautions at the beginning of this manual as well as the warnings and cautions contained in the chapters relevant to any servicing you may be carrying out. This manual contains the following chapters. Chapter 1 Principles of Operation Describes the principles of operation of the recorder. Chapter 2 Troubleshooting Lists problems that can occur and gives corrective actions.
Contents 1 Important Notice to the User ........................................................................................................... i Trademarks ..................................................................................................................................... i 2 Introduction ...................................................................................................................................... ii Safety Standards and EMC Standards .......................
Contents Chapter 4 Adjustments 4.1 Foreword .......................................................................................................................... 4-1 Environment ..................................................................................................................... 4-1 Operations on the Main Unit ............................................................................................ 4-1 Preparation ....................................................................
Chapter 1 Principles of Operation 1.1 Principles of Operation 1 Principles of Operation The following explains the principles of operation of the µR10000.
1.1 Principles of Operation A/D Converter ASIC Uses a proprietary one-chip ASIC. The ASIC is a combination analog/digital IC that contains popular CMOS processes. The table below shows its configuration. Temperature Sensor RJC Amp BiCMOS Analog CMOS Digital Multiplexer UART PGA Volt, TC A/D RTD Digital Filter Vref Controller RTD Amp Scanner Control EEPROM • Controller Controls switching of the input signal by the scanner, and switching of the A/D converter attenuator and RTD/TC mode.
1.1 Principles of Operation 1 Display / Panel Keys Principles of Operation • Offers a variety of display types, with a fluorescent character display tube (VFD) of 101 dots (horizontal) x 16 dots (vertical). • Seven keys are available for operation and settings. • White LEDs are installed for illuminating the z-fold chart paper. The LED can be replaced. Power Supply A universal type power supply unit supplying a voltage of 100 V to 240 VAC at a frequency of 50/60 Hz.
Chapter 2 Troubleshooting 2.1 Failure Analysis and Repair Procedures This section describes failure analysis and repair procedures. 2 1 2 3 4 Determine the type of problem. Check for possible user error. Check the connections and the settings of equipment to determine whether there was a handling mistake. Execute the self diagnostic test by turning the power ON, and identify any problem items. Analyze the cause of the problem according to the troubleshooting flow chart.
2.2 Failures and Corrective Actions The table below describes the most common types of failures and their corrective actions.
2.2 Performance Test Action 10 (Dot Model) Printer carriage does not move. 12 (Dot Model) Ribbon does not feed. 13 (Dot Model) Printed colors bleed. 14 (Dot Model) Trend recording not normal. 15 (Dot Model) Print quality poor 16 (Dot Model) Does not print. 17 Chart paper does not feed. 18 Internal illumination dim. 19 Internal illumination does not turn ON. 20 The measured value is not correct 21 Measured values fluctuate. 22 Voltage measurement is good, but temperature measurement is not correct.
Chapter 3 3.1 Testing Acceptance Test This section describes the procedure to perform the acceptance test. 1. 2. SM 04P01B01-01E 3-1 3 Testing 3. 4. 5. Read the preface to the user’s manual, “Checking the Contents of the Package” and verify that you have all of the contents. Make sure to understand the operating procedures as described in the user’s manual. Check each function using the user’s manual. Read and implement section 3.2, “Self Diagnostic Test.” Read and implement section 3.
3.2 Self Diagnostic Test The recorder is provided with complete self diagnostic functions to enhance reliability in measurement and serviceability. When you turn ON the power, the recorder will automatically execute the following types of diagnoses alternately and display the results. After these tests are completed, the recorder is ready for use. 1. 2. 3. 4. 5. 6.
3.3 Performance Tests Read the warning and cautions below before beginning tests. WARNING 3 Testing • Circuit patterns of the printed circuit board are exposed. Be careful when handling so that hands or fingers are not injured by the protruding pins. CAUTION • Circuit patterns of the printed circuit board are exposed. If other metallic materials touch these patterns, electrical shorting will occur, causing the circuit to be damaged or burnt.
3.3 Performance Tests Key Operations on the Recorder The recorder has the following modes. The following is an explanation of how to enter and exit each mode. • Operation Mode The mode in which the instrument is operated. The instrument enters this mode when the power is turned ON. • Setting Mode This mode is for entering the input range, alarms, and other settings. • Hold down the MENU key for three seconds or longer while in operation mode to enter this mode.
3.3 Performance Tests The Test/Adjustment Mode Menu (Pen Model) A/D Adjust Display A/D No. After specifying the range, check/change the adjustment value. Password (7098) Cal/Exec A/D No. After specifying the range, perform the adjustment. End A/D No. Store Abort Vref Password (6301) Cal/Exec A/D No. Offset End A/D No. Store 3 Testing Aux Range 20mVZ, 20mVF, 60mVZ, 60mVF, 200mVZ, 200mVF, 1VZ, 1VF, 2VZ, 2VF, 6VZ, 6VF, 20VZ, 20VF, Pt100Z, Pt100F, Cu10Z, Cu10F, Pt50Z, Pt50F F.
3.3 Performance Tests The Test/Adjustment Mode Menu (Dot Model) A/D Adjust Display A/D No. After specifying the range, check/change the adjustment value. Password (7098) Cal/Exec A/D No. After specifying the range, perform the adjustment. End A/D No. Store Abort Aux Vref Password (6301) Range 20mV, 60mV, 200mV 1V, 2V, 6V, 20V, Pt100, Cu10, Pt50 Cal/Exec A/D No. Offset End A/D No. Store F.Adjust Abort Rib. shift Exec R.Adjust End Store Abort ID ID Serial No.
3.3 Performance Tests Tests The following is a list of the tests of the µR10000.
3.4 Test Procedures Insulation Resistance ● Procedures Perform a measurement with an insulation tester and check whether the results meet the criteria. Perform the measurement with the power switch turned ON. Criteria Terminals Measured Criteria Between the power and earth terminals 100 MΩ or more Short the L and N terminals. Between the input and earth terminals 100 MΩ or more Short all input terminals.
3.4 Test Procedures Withstand Voltage ● Procedures Perform the test with a withstanding voltage tester, and check whether the results meet the criteria. Perform the measurement with the power switch turned ON. Test Duration The test duration is one minute. Criteria 3 Applied Voltage Max Allowable Condition Leak Current Between the power and earth terminals 1.5 kVAC 5 mA Short the L and N terminals. Between the input and earth terminals 1.0 kVAC 1 mA Short all input terminals.
3.4 Test Procedures ● Procedures Warm up the instrument for thirty minutes before performing the test. Set the ranges on the recorder, and input the values determined for each range. Check whether the displayed measured values meet the criteria. DC voltage generator + – To the input terminals Variable resistors The resistance of three lead wires must be equal.
3.4 Test Procedures Channel-to-Channel Error ● Procedures Pen Model Assign inputs as shown in the table below in parallel to channels 1 and 2, and check whether the measured values on both channels meets the criteria. Perform the same test using channels 3 and 4. Criteria Range Input 3 Criteria Short +/A and −/B 0.00 ±0.01 mV Pt100 103.9 Ω 10 ±0.2°C, between channel dispersion within 0.
3.4 Test Procedures Reference Junction Compensation Accuracy ● Procedures Set all channels to thermocouple type T. Measure 0°C on one of the channels and check that the display is within the criteria below. Criterion: ±0.5°C Calibrated thermocouple wires –/B +/A Input terminals 0°C standard temperature device (Model: ZC114 from Coper Electronics Co., Ltd. or equivalent) • Use a calibrated thermocouple, and wires of 0.5 diameter or less without a terminal chip.
3.4 Test Procedures Keys ● Procedures 1. 2. 3. Turn ON the power switch while pressing the MENU and CH UP keys. Menu = A/D Adjust is displayed. key. Select Menu = Test, and press the Choose Test = Key and press the key. Confirm that the appropriate box turns On or OFF when each key is pressed. The box of the display corresponds to the order of the keys. Press the ESC/? key twice to return to the Test = Key screen. * Select using the key’s action. key.
3.4 Test Procedures Recording Accuracy ● Overview Set the channels to the 2 V range and confirm that the recording accuracy is within the criteria. Pen Model Check the accuracy of all pens. Use standard pens (or equivalent). * A “standard pen” is one whose tip does not fluctuate more than ±0.1 mm. Dot Model Check an arbitrary channel. ● Recorder Settings Set the input to the 2 V range, and −2.000 V to 2.000 V. ● Procedures Input values equivalent to 0, 25, 50, 75, and 100%, and record.
3.4 Test Procedures Dead Band (Pen Model) ● Procedures Check the accuracy of all pens. Use standard pens (or equivalent). * 1. A “standard pen” is one whose tip does not fluctuate more than ±0.1 mm. Turn ON the power switch while pressing the MENU and CH UP keys. Menu = A/D 2. 3. d * Select using the key’s action. key. You can hold down the SHIFT key while pressing key to reverse the Pen Offset (Pen Model) ● Procedures Check all pens. Use standard pens (or equivalent). * 1. 2. 3.
3.4 Test Procedures Ink Bleed (Dot Model) ● Procedures 1. Turn ON the power switch while pressing the MENU and CH UP keys. Menu = A/D Adjust is displayed. key. Select Menu = Test, and press the Choose Test = Print and press the key. Select Menu = Ribbon, and press the key. Printing of six color test patterns begins. Confirm that the printed colors did not bleed. 2. 3. 4. Purple Black Green Blue Brown Red * Select using the key’s action. key.
3.4 Test Procedures When the /F1 Option is Not Installed Relay Relay No. I01-I06 I01-I06 When the /F1 Option Is Installed Relay Relay No. I01-I04 Chart Paper End Output Relay I05 FAIL Output Relay FAIL 3 Testing I01-I04 Output Relays Other Than the FAIL Output Relay Select the relay number to test and confirm that it is open between the NO and C relay output terminals. Press the key. The relay is energized. Check that it is closed between relay output terminals NO and C.
3.4 Test Procedures Loop Back Test (Ethernet Communication Interface, /C7) ● Procedures This test performed when the /C7 option is specified. 1. Connect the recorder to the network. 2. Turn ON the power switch while pressing the MENU and CH UP keys. Menu = A/D Adjust is displayed. 3. Confirm that the indicator on the left of the Ethernet port on the recorder illuminates. 4. Choose Menu = Test, and press the key. key. 3. Choose Test = Loop Back and press the Confirm that OK is displayed.
Chapter 4 Adjustments 4.1 Foreword This chapter describes adjustments of the A/D converters, recording position, pen speed (pen model), and ink ribbon (dot model). Environment See section 3.3, “Test Environment.” Operations on the Main Unit See section 3.3, “Key Operations on the Recorder.” 4 All adjustments are to be made after warming up the recorder for at least thirty minutes.
4.2 Adjustments to the Pen Model Adjusting the A/D Converters ● Overview Enter the value determined for each range, perform measurement, then write the adjusted values to the AD converter. ● Instruments Used Instrument Specifications DC voltage generator Accuracy: ±0.005% of setting + 1 µV or better Resistors 10 Ω, 50 Ω, 100 Ω, 150 Ω, 300 Ω, Accuracy: 0.
4.2 Adjustments to the Pen Model ● Procedure The following explains the procedure when working with channel 1. 1. Press the MENU and CH UP keys while turning ON the power. Menu = A/D Adjust is displayed. key. 2. With Menu = A/D Adjust is displayed, press the Menu=A/D Adjust 3. Input the password (see page 3-5). Password= 4. Select Mode = Cal/Exec, then press the Mode=Cal/Exec Select A/D No. = 1, then press the * 4 Adjustments 5. key. key. For channel 3, select A/D No. = 2. A/D No.=1 6.
4.2 Adjustments to the Pen Model 15. With End = Store displayed, press the key. The adjusted value is saved to the A/D converter. End=Store Concluding Adjustments 16. Select Menu = End, then press the mode. Menu=End key. You are returned to the operation Adjusting the Pen Speed ● Overview This is an adjustment to make the speed of the pen as it moves from left to right almost the same as when it moves from right to left. The recorder adjusts automatically.
4.2 Adjustments to the Pen Model 8. When all pen adjustments are finished, select Mode = End, then press the key. Mode=End 9. With End = Store displayed, press the The adjusted value is saved. End=Store Concluding Adjustments 10. Select Menu = End, then press the mode. Menu=End key. key. You are returned to the operation 4 If Error is displayed in the adjustment results screen, this most likely indicates that the pen cannot move normally through the full scale.
4.2 Adjustments to the Pen Model Adjusting the Zero Position 4. Select P_Adj = Zero, then press the P_Ajd=Zero key. 5. Select the number of the pen to adjust, then press the The adjustment value input screen in displayed. Pen No.=1 1-4 key. 6. Adjust the numerical value so that the pen recorder position overlaps the 0% position of the z-fold chart paper. Zero=42 0/70 7. When the adjustment is complete, press the key. You are returned to the Zero/Full selection screen.
4.3 Adjustments to the Dot Model Adjusting the A/D Converters ● Overview Enter the value determined for each range, perform measurement, then write the adjusted values to the A/D converter. ● Instruments Used Instrument Specifications DC voltage generator Accuracy: ±0.005% of setting + 1 µV or better Resistors 10 Ω, 50 Ω, 100 Ω, 150 Ω, 300 Ω, Accuracy: 0.
4.3 Adjustments to the Dot Model ● Procedure 1. Press the MENU and CH UP keys while turning ON the power. Menu = A/D Adjust is displayed. 2. With Menu = A/D Adjust is displayed, press the key. Menu=A/D Adjust 3. Input the password (see page 3-6). Password= 4. Select Mode = Cal/Exec, then press the Mode=Cal/Exec 5. Select A/D No. = 1, then press the A/D No.=1 6. Select Range = 20 mV. Range=20mV 7. key. key.
4.3 Adjustments to the Dot Model Adjusting the Ink Ribbon ● Overview This is an adjustment of the position of the ink ribbon. The adjustment is performed when colors of the dots bleed into one another. ● Procedure 1. Press the MENU and is displayed. CH UP keys while turning ON the power. Menu = A/D Adjust 2. Select Menu = Aux, then press the Menu=Aux 3. Enter the password (see page 3-6), then press the Password= 4. Select Sub = Rib. shift, then press the Sub=Rib. shift 5. Select Rib.
4.3 Adjustments to the Dot Model Adjusting the Printer Position ● Overview This is an adjustment of the printer position to make the recording position 0 to 100 mm. The adjustment is performed when the recording accuracy is outside the criterion, or when internal components have been replaced. Conditions • The adjustment matches the Zero position to the 0% position of the z-fold chart paper. • It also aligns the Full position from the 0% of the z-fold chart paper to the 100 mm position.
4.3 Adjustments to the Dot Model Adjusting the Full Position key. 9. Select P_Adj = Full, then press the The adjustment value input screen in displayed. P_Adj=Full 10. Adjust the numerical value so that the pen recorder position is in alignment from the 0% position of the z-fold chart paper to the 100 mm position. Full=4 -30/30(B:1000) 11. When the adjustment is complete, press the key. You are returned to the Hysteresis/Zero/Full selection screen. 11.
4.3 Adjustments to the Dot Model Adjusting the Belt Tension of the Printing Carriage ● Overview This is an adjustment of the belt tension of the printing carriage. The adjustment is performed when printer component is replaced. ● Tools Used Part number Idle pulley jig B8801AB 5 Name 15 12.5 20.5 2-R1.5 52.5 -+ 0.05 58.5 ● Procedure Push in the pulley until it is fixed in place by the latch. 1. Attach the printing carriage belt as shown in the figure.
Protective Earth CN1 CN2 Power Assembly B8800JP CN3 CN4 CN3 CN4 CN5 CN6 CN2 To Encorder (4PEN) CN8 CN2 CN1 Plotter's Y-Motor CN4 CN3 Battery Assembly B9900BR Pen Joint PCB B8800SF CN7 CN2 Main Power Board CN1 CN7 CN5 CN5 CN1 CN1 CN1 CN6 CN1 CN2 N To Encorder (3PEN) Plotter's X-Motor Chartend Assembly Sub Power Board L To Encorder (2PEN) Plotter Solenoid CN1 AC PPower Terminal To Encorder (1Pen) TO MOTOR (4PEN) CN1 CN2 Pen Driver PCB B8800SK Chart Motor Display Assembly B8800
5-2 5.2 CN4 CN2 CN3 CN4 To Ribbon Feed Motor To Ribbon Shift Motor Dot Driver PCB B8801SF CN5 CN1 CN2 CN1 CN4 Interface Unit for Configuration Software To Carriage Home Position To Wirw Dot Head CN3 CN2 CN1 CN4 CN5 CN3 CN9 CN8 CN2 Dot CPU Assembly B8801VA CN2 TO RJC Board Input Terminal Assembly B8801CW(SCREW) B8801CX(SCREW /N2) B8801CY(CLAMP /H2) CN1 CN10 Dot ISO.Scanner PCB (/N2) B8801SE COMM PCB B8800SN(RS422) B8800SP(ETHER) CN1 CN6 Dot STD.
Chapter 6 Customer Maintenance Parts List Customer Maintenance Parts List (Pen Model) E E YL D ST R L R 99 98 8 M U S SU ODE FF L IX SU PP LY F NO REQ UE . NC Y R ina O Ch C 00 in R N2 de E Ma 6.1 R C TAG N O. 6 Customer Maintenance Parts List 1 3 2 4 Note: Parts marked with a SM 04P01B01-01E symbol are Customer Maintenance Parts (CMP).
6.1 Customer Maintenance Parts List (Pen Model) Complete Set 0 20 R E D E R YL O ST R N Ch ina C in E de 99 MO 98 US 8 SU DE FF L IX SU PP LY FR NO EQ UE . NC Y R Ma 9 10 C LR TAG NO . 8 8 7 6 5 4 3 2 1 Item Part No.
6.1 Customer Maintenance Parts List (Pen Model) Chart Cassette Assembly 3 1 2 6 Customer Maintenance Parts List Item 1 2 3 SM 04P01B01-01E Part No.
6.1 Customer Maintenance Parts List (Pen Model) Pen Frame Assembly 6 7 8 9 19 5 1 4 3 2 10 11 12 MO D C SU EL D A FF IX 43 o noUTIO 6 ta N /A 101 pp MA 2 /R ly C oil 1 /C STY NO 00 . :0 3 LE 0:6 XX 4:8 XX 6:F XX 0:0 XX 0 X 18 43 0 13 TAG NO .
6.1 Customer Maintenance Parts List (Pen Model) Pen Frame Assembly 21 15 14 20 19 17 16 22 18 24 25 26 23 27 29 30 13 12 11 28 6 9 8 7 6 3 Customer Maintenance Parts List 4 5 2 10 1 Qty 6 7 8 9 10 Item 21 22 Part No.
6.1 Customer Maintenance Parts List (Pen Model) Case and Back Panel Assembly 13 14 12 10 11 12 12 1 3 5 5 4 76 2 9 9 8 6-6 Item 1 2 3 4 5 Part No.
6.
6.1 Customer Maintenance Parts List (Pen Model) Terminal Assembly (2/3) Item 1 2 3 4 5 Part No.
6.1 Customer Maintenance Parts List (Pen Model) Terminal Assembly (3/3) Item 16 Part No.
6.1 Customer Maintenance Parts List (Pen Model) Standard Accessories 1 4 2 5 3 Item 1 Part No.
Customer Maintenance Parts List (Dot Model) Y C N L E Y 0 U Q E R . O N 20 F LY R P E N U S R R 99 M S U 8 98 S L E D X O FI F U P L D C O S R T E E R M ad e in C hin a 6.2 C TAG NO . 6 Customer Maintenance Parts List 1 4 2 5 3 6 Note: Parts marked with a SM 04P01B01-01E symbol are Customer Maintenance Parts (CMP).
6.2 Customer Maintenance Parts List (Dot Model) Complete Set ina E D YL E R ST R Ch O in C de R 99 MO 98 US 8 SU DE FF L IX SU PP LY FR NO EQ UE . NC Y E 0 R Ma N20 9 10 G TA N . O C LR 8 8 7 6 5 4 3 2 1 Item Part No.
6.2 Customer Maintenance Parts List (Dot Model) Chart Cassette Assembly 3 1 2 6 Customer Maintenance Parts List Item 1 2 3 SM 04P01B01-01E Part No.
6.2 Customer Maintenance Parts List (Dot Model) Dot Frame Assembly 5 6 7 8 4 1 9 3 2 MO D SU EL FF 10 11 12 C D A 43 o noUTIO 6 t IX ap N /A 106 MA ply 2 /R C oil 1 /C STY NO 00 . :0 3 LE 0:6 XX 4:8 XX 6 X :F XX 0:00 XX 18 43 0 TAG NO . 13 17 14 15 16 Item 1 2 3 4 Part No.
6.2 Customer Maintenance Parts List (Dot Model) Dot Printer Assembly 27 24 25 23 10 25 28 26 12 11 13 18 10 22 22 19 20 21 15 14 5 3 2 6 1 Customer Maintenance Parts List 4 16 17 9 Item 1 2 3 4 5 Part No.
6.2 Customer Maintenance Parts List (Dot Model) Case and Back Panel Assembly 13 14 15 12 10 11 12 12 1 3 5 5 2 4 76 9 8 Item 1 2 3 4 5 Part No.
6.
6.2 Customer Maintenance Parts List (Dot Model) Terminal Assembly (2/3) Item 1 2 3 4 5 Part No.
6.2 Customer Maintenance Parts List (Dot Model) Terminal Assembly (3/3) Item 16 Part No.
6.2 Customer Maintenance Parts List (Dot Model) Standard Accessories 1 4 2 5 3 Item 1 2 3 4 5 Part No.
Chapter 7 Replacing Parts 7.1 Introduction Notes When Replacing Parts • Replacement of parts can only be performed by properly trained personnel. • This section describes disassembly of the instrument. Refer to the disassembly procedures when reassembling. • If parts other than the chart paper, pens, ribbon cassette, and internal light LED are replaced, the instrument is no longer warranted by YOKOGAWA.
7.2 Replacable Parts The recommended replacement periods for wearable parts (ones with limited lifespans) is given in the table below. The replacement periods are based on standard operating conditions. The actual replacement period should be determined depending on the actual operating conditions. Pen Model Z-fold chart paper Replacement Part Name Period 33 days Chart Felt pen 2 km Item 100,000 characters Plotter pen Part No.
7.3 Disassembly Door Assembly [Item 1 on pages 6-2 and 6-12] Remove the door by depressing the hinge pin. Pin Internal Unit - Frame Assembly [Item 5 on pages 6-2 and 6-12] 1. 2. Remove the Chart Cassette Assembly. Remove the two screws from the lower part of the internal unit. Tool used: 3 mm hex wrench (70 mm or longer) 7 Replacing Parts 3. Hold the internal unit at its center, and pull it out toward you. Hold and pull.
7.3 Disassembly CPU Assembly, Battery Assembly [Item 14 on pages 6-4 and 6-14] 1. 2. Remove the internal unit. Remove the two screws securing the CPU Assembly. Latch CPU Assembly EMC Earth Bracket Latch 3. 4. Remove the EMC Earth Brackets. The CPU Assembly is connected to the connector on the Joint PCB at the bottom. Release the latches, then pull the CPU Assembly straight up to separate it from the Joint PCB. Dot/Pen Joint PCB Connector Removing the Battery Assembly 5.
7.3 Disassembly Joint PCB [Item 6 on pages 6-4 and 6-14] 1. 2. 3. Remove the internal unit. Remove the CPU Assembly. Remove the cable and the FPC (Flexible Printed Circuit) connected to the Joint PCB. Removing the FPC Release the cable lock of the connector and remove the FPC. When reassembling, be sure to lock the FPC after reattaching it. FPC Remove the FPC. Lift the cable lock. Cable Lock 4. Remove the two screws securing the Joint PCB.
7.3 Disassembly Chart Paper Feed Motor - Motor Assembly (B9962EJ) [Item 10 on pages 6-5 and 6-15] 1. 2. Remove the internal unit. Remove the Gear Cover. Light pressure is used to place the Gear Cover. Screw driver bit Gear Cover 3. Gear Cover Remove the gears. Gears Gear A: 1 piece Gear B: 3 pieces Gear C: 1 piece 4. 5. 6. Remove the Motor Assembly cable from the connector on the Joint PCB. Remove the Joint PCB. Pull the Motor Assembly straight out as shown in the figure.
7.3 Disassembly Display Assembly [Item 1 on pages 6-4 and 6-14] 1. 2. 3. 4. Remove the internal unit. Remove the CPU Assembly. Remove the FPC cable from the Display Assembly connected to the Joint PCB. Remove the semitransparent Disp. FPC Cover. FPC Disp. FPC Cover 7 5. Pin Push 6. SM 04P01B01-01E Remove the Display Assembly. 7-7 Replacing Parts Push up on the hinge pin of the Display Assembly, then pull the pin out. The tip of the pin forms latch.
7.3 Disassembly ● Dot Model Dot Driver PCB [Item 7 on page 6-14] 1. 2. 3. Remove the internal unit. Remove all cables and FPCs connected to the Dot Driver PCB. Release the latch securing the board, then remove the Dot Driver PCB.
7.3 Disassembly 3. Release the left and right latches simultaneously, then pull the Ribbon Holder Assembly toward you to remove. Ribbon Holder Assembly Latch Front Motor Assembly Latch Latch SM 04P01B01-01E 7-9 7 Replacing Parts Ribbon Feed Motor - Motor Assembly (B9962EJ) 4. While releasing the tab on the latch securing the Motor Assembly on the Ribbon Holder Assembly, turn the Motor Assembly in the arrowed direction. The Motor Assembly is removed.
7.3 Disassembly Swing Gear A and B 5. Remove the Swing Gear Cover. Light pressure is used to place the Swing Gear Cover. 6. Remove the Swing Gear A and B. Swing Gear Cover Ribbon Shift Motor - Motor Assembly (B9962EJ) 7. Remove the Motor Assembly cable from CN1 on the Dot Driver PCB. CN1 8. Turn the Motor Assembly in the arrowed direction, release the latch, then pull to remove.
7.3 Disassembly ● Dot Model Lever Assembly (B9901EK) [Item 26 on page 6-15] Pulley Assembly (B9963CJ) [Item 25 on page 6-15] 1. 2. 3. Remove the internal unit. Remove the Ribbon Holder Assembly. Loosen the screw* securing the Lever Assembly and remove the belt tension spring. * The screw tightening torque is 0.3 to 0.35 N•m. Pulley Assembly Spring Lever Assembly Belt Pulley Assembly 7 Remove the belt from the left and right Pulley.
7.3 Disassembly ● Dot Model Carriage Assembly (B9963CL) [Item 14 on page 6-15] 1. 2. 3. 4. Remove the internal unit. Remove the Dot Driver PCB. Remove the Ribbon Holder Assembly. Loosen the screw* securing the Lever Assembly and remove the belt tension spring. * The screw tightening torque is 0.3 to 0.35 N•m. Pulley Assembly Spring Lever Assembly 5. Belt Pulley Assembly Pull the main shaft toward you to remove it from the shaft securing groove.
7.3 Disassembly ● Dot Model Carriage Motor - Motor Assembly (B9963CF) [Item 23 on page 6-15] 1. 2. 3. Remove the internal unit. Remove the Ribbon Holder Assembly. Loosen the screw* securing the Lever Assembly and remove the belt tension spring. Then remove the Belt from the Pulley Assembly. * 4. The screw tightening torque is 0.3 to 0.35 N•m. Remove the cable from the Motor Assembly from CN3 on the Dot Driver PCB. CN3 5. Remove the two screws securing the Motor Assembly (0.3 to 0.
7.3 Disassembly ● Pen Model Pen Servo Assembly (B8800FG) [Item 23 on page 6-5], Pen Driver PCB [Item 7 on page 6-4] Pen Arm Assembly [Items 24 to 27 on page 6-5] CAUTION • If any foreign material adheres to the mechanism of the Pen Servo Assembly that moves the pens, malfunction can occur. • If any foreign material adheres to the bottom of the Pen Servo Assembly, that foreign material can fall onto components during assembly and cause malfunction.
7.3 Disassembly 3. Release the cable lock of the connector and remove the FPC from the Pen Joint PCB at the top of the Pen Driver PCB on the back panel of the internal unit. FPC 4. Remove the three pins securing the Pen Servo Assembly. The tips of the pins form latches. To remove them, squeeze the tips using a pair of tweezers, then pull out the pins. 7 Replacing Parts Pin 5. SM 04P01B01-01E Remove the two Pen Servo Assemblies and Pen Driver PCB.
7.3 Disassembly 6. Remove the FPCs. Release the latches on the Pen Driver PCB, then separate the Pen Servo Assembly and Pen Driver PCB. Latch Latch FPC FPC FPC FPC Note The connector connected to the FPC from the Pen Servo Assembly on the Pen Driver PCB does not have a locking mechanism. Inserting and removing it repeatedly can result in worn or defective contacts. 6. Remove the Pin from the Pen Servo Assembly, then remove the Pen Arm Assembly.
7.3 Disassembly ● Pen Model Pulley Bearing (B9900RP) [Item 17 on page 6-5] 1. 2. 3. 4. Remove the internal unit. Remove the Pen CPU Assembly. Remove all Pen Servo Assemblies. Remove the Spring, then turn the Idler Lever and pull it toward you. Idler Lever 5. Spring Slightly widen the Pulley Clip to remove the Pulley Bearing. 7 Belt Replacing Parts Pulley Bearing Pulley Clip ● Pen Model Plotter X Motor - X Motor Assembly (B8800DT) [Item 20 on page 6-5] 1. 2. 3. 4. 5. 6. Remove the internal unit.
7.3 Disassembly ● Pen Model Carriage Assembly (B8800DJ) [Item 11 on page 6-5] 1. 2. 3. 4. 5. Remove the internal unit. Remove the Pen CPU Assembly. Remove all Pen Servo Assemblies. Remove the Spring, then turn the Idler Lever and pull it toward you. Remove the FPC connected to CN8 on the Pen Joint PCB. Release the locking mechanism securing the FPC, then pull up the FPC. FPC CN8 Lift the cable lock. FPC Cable Lock Remove the FPC. 6.
